Improvement in stave-jointing machine



N. PETERS. PWOTOJJTHOGRAPHER. WASH ashowing section.A

l Hit-riti .il

his y I, WILLIM Wmnowsomof the city of Rochester, in the'county-of Monroe andState` of New York, have invented certain `new and useful Improvements :in Machines forJointing Staves,'&c;, of which the following is a specification.

`This invention consistsin inakingthe bed-piece adjustable at one end, in combination With-the ,cutterframe below which it is arranged, and iuan improved construction and arrangement of the gaugedevices, `as will be hereinafter fully described.l `1

Figure 1 isa front'elevation of my improved machineyy` Figure 2,"a verticalcrossisection; and i Fig'ure 3, an "end view of the top of the'rnachine, the devieeforadjusting the knife-frame, in

"In the drawing;- i Y, s A A indicate the end upright parts ofthe main frame; Y

B,*the cross-pieeeof thev fian1e,connecting the end i parts Auand D,the\bed.piece. i i 4 The knife or cutter G`lias the cutter a secured to it by-means of bolts bb, and is made slightly concave, longitudinally, ou one side, to givethe p roper form or` bilge to the stave. 4 1 i The cutter-frame isprovided with an extended pori tion', d, at one end, shown in dotted lines, iig. 1, which `is hinged by means of a bolt,lc, to a bearing, E, at.

tached to the'side of the frame A. The bolt c restsrtbrough-a slot, j; inthe bearing E,

by which means the endfof the knife-frame is ad,`

justed up o1` down to vary its angle, so as to produce i VVa shearin'gor angular fout of.` greater or lesser incline, "according `to the hardness `or thickness of the wood or other material to he out. Y -,Ivalso` provide, in the extension d of the'knifefframe,

twr or more adjustment holes, g g, above and below the line of the angle, of theknife-frame, so that, in apera'tion, a] slightly drawing aswell as shearing cut is produced by the knife. i

I prefer to make the bearing-plate E adjustable i vertically, by means of slots 7i hand set-screws ti, in4 order toincrease the degree' of adjustability of the' knifefframe.` i

`The opposite or swinging end of the knife-frame C moves in a verticalslot between the end parts A of [the frame and the guide or bearing-plate It.

i, `Stops s' s are provided `at the upper and lower ends `of the said slot, in order to prevent the 'cutterframe from rising or lowering to far.` i

`A spring, F, is bolted at one end to the top of, the' main frame,audv at the other end is connected a md i or bar, which also connects with the swinging ewnd of the knife-flame.

, WILLIAM'fWin15,oiivsoim o r' 'RoGenerica, NEW Your.

VFroruthis end of the knife-frame a rod, lm., extends downward, with a screw-thread, n, onits lower. end,

' 'hich `scrcws: into a swivelnut, c, on the end ofa'` chain, p.'

This chain extends around, and isj-se'cu'red to'the lower side of a segment or cam, G, which lis mounted. 1

on a shaft, H.

A tread-lever, I, secured to the shaft H, extends out in nearly a horizontal directiorr to the front side of themachine, ina convenient position to beoper-l ated by the foot of the operator.

:The tread-lever may be gauged Vhigher or lower, to correspond with the distance of stroke required'by theA knife-frame, by adjusting the swivelnut o to the proper point on the screw n. i

1t will be seen that, by depressing the tread-lever I,

the cutter is drawn down so as to shut past the bcdplate, in such manner as to shear o" the edge of the stave, and give itthe proper form'. The cutter-frame i isagain raised by thetension of the spring F. l Byhinging theeutter-'frame at one end so as to producethe shearing cut by the knife, as described, much less power is required'for operatingfit than in those machines where the knife strikes squarely upon the stave, and the cutting is effected through the en` tire length `of the stave at the Sametime.

The knife may'also 'be gauged to any angle to adapt it to cutting wood or other material of different degrees of hardness or thickness, and produce a smooth and uniform cut,without-liability of abrasion or shattering of the stave.

I prefer to make the bed-piece I) adjustable by hinging it at one end byfmeans of a bolt, t, with the other end secured by a set-screw, u, that rests through afslot, fu, of the main frame.v rBy this means thebed. may he set at any anglcto correspond with the angle of the cutter.

The ,bed D is provided withtwo parallel bars'or I rests, rw w, across which the stave rests, and is `slid up under the knife, to be cut, by means of arms or bearings iv'x, that are hinged at their lower ends, and are provided with a stop, y, to prevent them fromfdropping lback too far.

-In cutting barrel liniugs, or other articles A.in which it is necessary to gauge their breadth, I provide gauge-arms z z, which are secured to a rock-shaft, 1, that rests in adjustable hearings 2 2; The 'arms z z extend downward from the shaft, with `the lower ends resting opposite the space between the cutter andthe bed-piece, and iserve as'stops for the material from which the strips are cut as it is passed through under the knife.

The arms are set out from the cutter.. adistance equal to the breadth of the strip to he cut, and are adjusted out and in to vary the gauge to different widths by means of the bearings 2 2, that rest in slots 3 3 in the arms a af.

Extending; upward from the rook-shaft 1 is anarm, b', with its top resting against au arm or bearing, c," of the cutter-frame C. The' arm b is provided with an oset, e', and with a spring, g', which holds it in place against the bearing c'.

The material to be cut is passed through under the knife as far as. the arms z z, which are set in the position to properly gauge the strip.

When the knife is drawn down in the avt of cutting, the bearing c slides4 down over the o'set or inclination e' in the arm b', which imparts a tilting or rockingmotion to the shaft 1. t

By this means the gauge-bearings z z are thrown outfrom the strip,'.being cut s0 as to allow it to drop out of the way when severed by the knife. The knife- Witnesses FREDERIC P. ALLEN,

F. A. DAyls. 

